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Military revenge against the German Empire, submarine warfare was the most covert and effective. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

In addition, the Chinese Imperial Internal Staff also provided Li Weiguo with other means of military retaliation.

In the name of fighting pirates and arresting murderers, the Imperial Chinese Navy will deploy control throughout the North Atlantic, specialize in intercepting and searching the merchant ships of the German Empire, and if necessary, they can seize them, forcing the German Empire to fight a diplomatic war with the Chinese Empire. As long as the German Empire did not have the strength and confidence to start a war with the Chinese Empire, they would choose to forbear.

In addition to the Imperial Chinese Navy, the Divine Army and Air Force will also take action.

However, unlike the Navy, the Army and Air Force would increase the number of troops stationed around the German Empire, and the Chinese Empire would forcefully force the European countries that were in a state of vacillation to agree to allow the Shence Army to be stationed. As long as the Shence Army is stationed and has a military base, then these swinging European countries will have to stand in the camp of the Chinese Empire and choose to confront the German Empire.

In addition to the Air Force also increasing the size of its European garrison, bombers also began to enter service in batches.

For the first time since the English incident, the German Imperial High Seas Fleet aircraft carrier battle group dispatched a bomber force, and although the bombers were shot down by the powerful anti-aircraft fire network of the Atlantic Fleet of the Imperial Chinese Navy, it shocked the entire Imperial Chinese Navy high-brass.

Bombers can threaten the naval fleet, which has attracted great attention from the top of the Chinese Imperial military, coupled with Li Weiguo's deliberate guidance, so after the English Channel incident, the Chinese Imperial Military accelerated the development of bombers, and began to carry out relevant test work on naval aircraft carriers.

In order to deal with the fighters and bombers that appeared in advance of the German Empire, under the instruction of Li Weiguo, the Imperial Academy of Sciences released some sealed technical materials from secrecy and handed them over to the Imperial military.

These sealed technologies are all relevant research conducted by the Imperial Academy of Sciences at the order of Li Weiguo many years ago, and they are all technical materials related to aircraft.

At the beginning, Li Weiguo was worried that the premature application of the advanced aircraft design concepts of later generations would seriously affect the historical process, but he did not want to be surpassed by other countries, so he ordered the Imperial Academy of Sciences to develop and reserve technology in advance, and then mothball, once the need is suitable, to ensure that it can be directly taken out and used, so that the Chinese Empire still maintains the advantage of technological leadership.

But as Hitra played his cards out of common sense, Li Weiguo couldn't care so much.

This time, the technical data on aircraft handed over to the military by the Imperial Academy of Sciences are all the most advanced fighter technology and test data in the world.

However, these are all secrets, and the military does not know that the Imperial Academy of Sciences has long had these advanced fighter technologies.

As for the Chinese Imperial military, they didn't care about that, they only cared about whether they could fight the advanced fighters in the hands of the enemy.

At present, the enemy of the Chinese Empire has been very clear, that is, the German Empire, and the enemy of the Chinese Imperial Air Force is naturally the German Imperial Air Force.

Today's German Empire already has many types of fighters and bombers, and in this regard, Hitra seems to be very attentive.

However, for the Chinese Empire, the most nervous were the German Empire's Fokker E3 fighters, as well as the Gotha bombers.

According to the information held by S.H.I.E.L.D., the Luftwaffe Fokker E3 fighter was much more powerful than the Junker fighter of a few years ago. Its aircraft is 3 meters high, 8 meters long, with a wingspan of 10 meters, using a normal layout of the middle wing, reinforced by a stretch line, the wing aspect ratio is not large, the maneuverability is good, the machine gun is mounted on the upper part of the nose, easy to aim and shoot. The maximum take-off weight is 800 kg, the maximum flight speed has also exceeded 180 kilometers per hour, the practical ceiling has also exceeded 3,500 meters, and the cruising time is 2 hours.

The Gotha bomber, on the other hand, has a wingspan of 24 meters, a length of 13 meters, a height of 4.3 meters, a weight of 4,000 kilograms, an engine power of 4×190 horsepower, a maximum speed of 140 kilometers per hour, an altitude of 6,500 meters, a range of 635 kilometers, and an armament of 2 to 3 heavy machine guns and 10 50-kilogram smashing eggs.

These two fighters of the Germans were the most nervous and important to the Chinese Imperial Air Force.

When they got the technical data and test data of fighters and bombers provided by the Imperial Academy of Sciences, they finally breathed a sigh of relief.

The Imperial Academy of Sciences has always been at the forefront of the world in aircraft development, and the information on fighters and bombers handed over to the Imperial Air Force is also incomparable to the Germans in all respects.

The first is the airfoil design, which during the World Wars was not yet aware of the impact of airfoil thickness on wing structure. At that time, the traditional airfoil was "protruding and concave", but under the technical and technological conditions of the time, such airfoil was extremely fragile in terms of structure. If it is a monoplane, it needs a lot of pillars and tension lines to reinforce. Therefore, monoplanes at this time are not comparable to biplanes or even multiplanes in terms of lift, strength, weight, etc.

Although Hitler also told the German aircraft designers to let them change the airfoil design of the aircraft, it was a pity that the German Empire at that time did not have a wind tunnel laboratory at all, and there was a lack of aerodynamic theory support, so although Hitra said it wildly, it was a pity that the German aircraft designers could not realize Hitla's idea because of the lack of various experimental data to support it.

But the Chinese Empire is different, Li Weiguo has long ordered a special person to start the theoretical research of aerodynamics, which has never been passed on, and at the same time built a wind tunnel laboratory, so that various theoretical studies have been demonstrated in the laboratory.

This time, the Imperial Air Force of China received the design drawings of the new fighter.

According to the numbering rules, this time the fighter model is F17, which is used to replace the F16 currently in service.

In terms of layout, the F17 fighter is much more advanced than the German Fokker E3 fighter, mainly designing the lower surface of the airfoil as a straight face, increasing the thickness of the airfoil, improving the strength of the wing structure, and the maneuverability is also very good, using an in-line air-cooled engine, which doubles the power of the liquid-cooled engine used by the Fokker E3 fighter, making the take-off weight reach 1200 kg, two heavy machine guns can be installed, increasing the number of bullets, and the maximum flight speed has also exceeded 220 km per hour, The practical ceiling is 4000 meters, and the cruising time is also an hour longer than that of the Fokker E3.

The Imperial Air Force of China was very excited after getting the design drawings of the F17 fighter, but advanced fighters will always attract scramble, the Air Force got the F17 fighter, and the Navy immediately reached out to ask for it, after all, the Navy has also established naval aviation, and even naval aircraft carrier battle groups, carrier-based fighters are indispensable.

As a result, the F17 fighter quickly produced a modification, which was named the F18 carrier-based fighter by the Navy.

From the F17 fighter to the F18 carrier-based fighter, it is only a matter of taking off from the sea and landing at sea, but there is a lot of technology involved.

One of them is static stability, a technology currently only mastered by the Chinese Empire, which is applied to the F18 carrier-based fighter.

As the name suggests, this static stability means that early airplanes were statically unstable. However, due to its low speed, it is still within the range that the pilot's intuitive response can control, so there is no need for a complex maneuvering system. Static instability, on the other hand, gives the aircraft better agility and maneuverability.

For example, the German Empire also developed a static stabilized fighter, which was the Junker 9 fighter, but unfortunately when it confronted the German Fokker E3 fighter, it could easily become a meal on the plate of the Fokker fighter.

As a result, the Luftwaffe listed the Junkers aircraft as persona non grata for a time, and thus purchased Fokker E3 fighters.

However, the F17 fighters obtained by the Chinese Imperial Air Force, as well as the modified F18 fighters, are also static and stabilized fighters, but they do not have to be afraid of being abused by Fokker E3 fighters.

This is because the new fighter of the Chinese Empire has exceeded 220 kilometers per hour in speed, and at this speed, the static stability is very easy to control, but the static stability of the fighter has become difficult to control.

When the Fokker E3 fighter is also at this speed, it will be difficult for the pilot to control the aircraft for combat, and even if he barely controls the aircraft, it will cause fatigue to be consumed too quickly, and it will be difficult to fight for a long time.

And as the power of aero engines increases, the speed of future fighters will become faster and faster, so the Germans' investment in the Fokker E3 fighter is doomed to tragedy.

The F17 and F18 fighters of the Imperial Air Force of China, and many other technologies surpassed the Luftwaffe's Fokker E3 fighters.

For example, the aileron problem. The aileron, which is one of the important aerodynamic control surfaces of the aircraft, was also gradually developed during the world war. At that time, the design idea was very simple, the purpose was to roll faster and the ailerons should be larger. But in reality, the airfoil is severely damaged when the large ailerons are deflected.

The data obtained by the Chinese Empire through wind tunnel tests showed that the rolling moment of the aileron was not as large as expected, but it changed the drag distribution of the aircraft, so that when the pilot pressed the rod, the aircraft first produced yaw motion, and then produced rolling motion. On the other hand, large ailerons require a large lateral maneuvering moment. At that time, airplanes were often static and unstable in the longitudinal direction and course, and the maneuvering torque was extremely small. The imbalance of the three-axis control torque brings great difficulty to the pilot's control.

Another huge advantage of the F17 fighter is the engine, which almost represents the highest level of aviation industry technology in the Chinese Empire, directly throwing off the Germans.

After the World War, the Chinese Empire and the German Empire became the two most powerful countries in the world, and both valued the aviation industry, so they competed in aero engines.

In the eyes of other countries, both the Chinese Empire and Germany were leaders in engine development.

Among them, the German Empire has made outstanding achievements in rotary cylinder engines, while the Chinese Empire has always been a leader in in-line liquid-cooled and air-cooled engines.

In terms of engine propellers, even the Germans mainly used the layered wooden structure propellers invented by the Chinese Empire. Engine development around the world is currently focused on improving the power-to-weight ratio and reliability. The rotary engine of the German Empire was highly efficient and lightweight, and was rapidly developed during the world wars. However, due to the rotation of all cylinders around the axis, a large gyroscopic moment will be generated, which will seriously affect the aircraft handling. Therefore, after the world war, the German Imperial military required the replacement of the engine, and the engine used on the Fokker E3 fighter was the in-line liquid-cooled engine imitated by the German Empire in imitation of the Chinese Empire, but the German aero engine started late after all, and could only copy the existing technology of the Chinese Empire.

On the contrary, the relatively bulky in-line engines of the Chinese Empire, despite the problem of local overheating, had great potential for development, especially now that the replacement of liquid cooling with air cooling would become the mainstream of piston engines in the following decades.

However, the greatest technical advantage of the fighters of the Chinese Empire over the fighters of the German Empire was the technology of slats and slotted flaps

As early as the World War, the Aviation Laboratory and the Wind Tunnel Laboratory of the Imperial Chinese Academy of Sciences respectively discovered the slat-lift effect. That is, by making a slit on the leading edge of the wing, the stall angle of attack of the wing and the maximum lift coefficient of the wing can be increased.

The year after the end of the World War, the first application of slats was carried out on a wind tunnel test model. At that time, this design was mainly used to delay the wingtip stall and improve the tailspin characteristics of the aircraft. Later, after continuous improvement into the form of wingtip slat, good results have also been achieved, so that the aircraft has good low-speed maneuverability.

However, at that time, Li Weiguo believed that this technology would change the course of fighter history, so he ordered the discovery and the relevant data of the wind tunnel test in the fighter model to be sealed, until now it is handed over to the Chinese Imperial Air Force and used in the F17 fighter and F18 fighter.

In fact, this type of flap had better lift performance than the simple flaps commonly used at the time, which helped to greatly improve the take-off and landing performance of the aircraft. Of course, the complexity and weight of the construction also increase.

To this end, the Imperial Academy of Sciences set up a special drag reduction research project, and the researchers found laminar flow attached to the surface layer during the experiment. This surface layer has minimal frictional resistance and is exactly what the designer expects to achieve. But due to manufacturing process constraints – the need for an absolutely smooth wing with no roughness or bending, a requirement that would be difficult to achieve even in the twenty-first century – the idealized laminar flow surface layer has not been realized for decades since.

After being vetoed by Li Weiguo, the Imperial Academy of Sciences would not hang himself from a tree, and soon through the study of aircraft drag, the designers at that time gradually formed two schools. One side argues that the improvement work carried out to reduce drag will inevitably lead to an increase in the weight of the aircraft, thus negating the aerodynamic benefits of drag reduction, so the drag reduction design is not necessary - the result is that the shape of the fighter design is uneven and extremely ugly. On the other hand, there is a strong emphasis on drag reduction and the streamlined shape of the aircraft, which benefits from performance.

Since Li Weiguo supported the latter, streamlined design technology was adopted on the F17 and F18 fighters.